/Engine/Plugins/Web/HttpBlueprint/Source/HttpBlueprint/Public/HttpBlueprintFunctionLibrary.h
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, BlueprintInternalUseOnly, Category="Http") static void MakeRequestHeader ( const [TMap](API\Runtime\Core\Containers\TMap)< [FString](API\Runtime\Core\Containers\FString), [FString](API\Runtime\Core\Containers\FString) > & Headers, [FHttpHeader](API\Plugins\HttpBlueprint\FHttpHeader) & OutHeader )